Home / 10,246.10-15,332.70-7,111.40

Finding the Fourth Proportional to 10,246.10, 15,332.70 and 7,111.40

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Solution

The fourth proportional to 10,246.10, 15,332.70 and 7,111.40 is: 10,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,246.10 : 15,332.70 = 7,111.40 : x
  2. Step 2: Convert to fraction form
    10,246.10/15,332.70 = 7,111.40/x
  3. Step 3: Cross multiply
    10,246.10x = 15,332.70 × 7,111.40
  4. Step 4: Simplify right side
    10,246.10x = 109,036,962.78
  5. Step 5: Solve for x
    x = 109,036,962.78/10,246.10
  6. Step 6: Final answer
    x = 10,641.80

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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.