Home / 10,389.16-14,337.40-5,673.80

Finding the Fourth Proportional to 10,389.16, 14,337.40 and 5,673.80

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Solution

The fourth proportional to 10,389.16, 14,337.40 and 5,673.80 is: 7,830.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.16 : 14,337.40 = 5,673.80 : x
  2. Step 2: Convert to fraction form
    10,389.16/14,337.40 = 5,673.80/x
  3. Step 3: Cross multiply
    10,389.16x = 14,337.40 × 5,673.80
  4. Step 4: Simplify right side
    10,389.16x = 81,347,540.12
  5. Step 5: Solve for x
    x = 81,347,540.12/10,389.16
  6. Step 6: Final answer
    x = 7,830.04

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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.