Home / 7,487.21-10,332.42-4,130.15

Finding the Fourth Proportional to 7,487.21, 10,332.42 and 4,130.15

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Solution

The fourth proportional to 7,487.21, 10,332.42 and 4,130.15 is: 5,699.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.21 : 10,332.42 = 4,130.15 : x
  2. Step 2: Convert to fraction form
    7,487.21/10,332.42 = 4,130.15/x
  3. Step 3: Cross multiply
    7,487.21x = 10,332.42 × 4,130.15
  4. Step 4: Simplify right side
    7,487.21x = 42,674,392.80
  5. Step 5: Solve for x
    x = 42,674,392.80/7,487.21
  6. Step 6: Final answer
    x = 5,699.64

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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.