Home / 10,862.38-14,986.65-6,384.70

Finding the Fourth Proportional to 10,862.38, 14,986.65 and 6,384.70

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Solution

The fourth proportional to 10,862.38, 14,986.65 and 6,384.70 is: 8,808.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,862.38 : 14,986.65 = 6,384.70 : x
  2. Step 2: Convert to fraction form
    10,862.38/14,986.65 = 6,384.70/x
  3. Step 3: Cross multiply
    10,862.38x = 14,986.65 × 6,384.70
  4. Step 4: Simplify right side
    10,862.38x = 95,685,264.26
  5. Step 5: Solve for x
    x = 95,685,264.26/10,862.38
  6. Step 6: Final answer
    x = 8,808.87

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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.