Home / 10,332.99-15,515.28-9,110.70

Finding the Fourth Proportional to 10,332.99, 15,515.28 and 9,110.70

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Solution

The fourth proportional to 10,332.99, 15,515.28 and 9,110.70 is: 13,679.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,332.99 : 15,515.28 = 9,110.70 : x
  2. Step 2: Convert to fraction form
    10,332.99/15,515.28 = 9,110.70/x
  3. Step 3: Cross multiply
    10,332.99x = 15,515.28 × 9,110.70
  4. Step 4: Simplify right side
    10,332.99x = 141,355,061.50
  5. Step 5: Solve for x
    x = 141,355,061.50/10,332.99
  6. Step 6: Final answer
    x = 13,679.98

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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.