Home / 8,700.16-12,002.16-4,972

Finding the Fourth Proportional to 8,700.16, 12,002.16 and 4,972

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Solution

The fourth proportional to 8,700.16, 12,002.16 and 4,972 is: 6,859.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.16 : 12,002.16 = 4,972 : x
  2. Step 2: Convert to fraction form
    8,700.16/12,002.16 = 4,972/x
  3. Step 3: Cross multiply
    8,700.16x = 12,002.16 × 4,972
  4. Step 4: Simplify right side
    8,700.16x = 59,674,739.52
  5. Step 5: Solve for x
    x = 59,674,739.52/8,700.16
  6. Step 6: Final answer
    x = 6,859.04

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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.