Home / 9,860.43-13,607.39-5,384.20

Finding the Fourth Proportional to 9,860.43, 13,607.39 and 5,384.20

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Solution

The fourth proportional to 9,860.43, 13,607.39 and 5,384.20 is: 7,430.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860.43 : 13,607.39 = 5,384.20 : x
  2. Step 2: Convert to fraction form
    9,860.43/13,607.39 = 5,384.20/x
  3. Step 3: Cross multiply
    9,860.43x = 13,607.39 × 5,384.20
  4. Step 4: Simplify right side
    9,860.43x = 73,264,909.24
  5. Step 5: Solve for x
    x = 73,264,909.24/9,860.43
  6. Step 6: Final answer
    x = 7,430.19

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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.