Home / 7,487.24-10,332.16-4,129.99

Finding the Fourth Proportional to 7,487.24, 10,332.16 and 4,129.99

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Solution

The fourth proportional to 7,487.24, 10,332.16 and 4,129.99 is: 5,699.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.24 : 10,332.16 = 4,129.99 : x
  2. Step 2: Convert to fraction form
    7,487.24/10,332.16 = 4,129.99/x
  3. Step 3: Cross multiply
    7,487.24x = 10,332.16 × 4,129.99
  4. Step 4: Simplify right side
    7,487.24x = 42,671,681.32
  5. Step 5: Solve for x
    x = 42,671,681.32/7,487.24
  6. Step 6: Final answer
    x = 5,699.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.