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Finding the Fourth Proportional to 10,526.57, 15,807.68 and 7,038.99

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Solution

The fourth proportional to 10,526.57, 15,807.68 and 7,038.99 is: 10,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,526.57 : 15,807.68 = 7,038.99 : x
  2. Step 2: Convert to fraction form
    10,526.57/15,807.68 = 7,038.99/x
  3. Step 3: Cross multiply
    10,526.57x = 15,807.68 × 7,038.99
  4. Step 4: Simplify right side
    10,526.57x = 111,270,090.21
  5. Step 5: Solve for x
    x = 111,270,090.21/10,526.57
  6. Step 6: Final answer
    x = 10,570.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.