Home / 10,259.90-15,389.85-9,784.70

Finding the Fourth Proportional to 10,259.90, 15,389.85 and 9,784.70

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Solution

The fourth proportional to 10,259.90, 15,389.85 and 9,784.70 is: 14,677.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,259.90 : 15,389.85 = 9,784.70 : x
  2. Step 2: Convert to fraction form
    10,259.90/15,389.85 = 9,784.70/x
  3. Step 3: Cross multiply
    10,259.90x = 15,389.85 × 9,784.70
  4. Step 4: Simplify right side
    10,259.90x = 150,585,065.30
  5. Step 5: Solve for x
    x = 150,585,065.30/10,259.90
  6. Step 6: Final answer
    x = 14,677.05

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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.