Home / 10,290.04-14,187.29-8,399.70

Finding the Fourth Proportional to 10,290.04, 14,187.29 and 8,399.70

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Solution

The fourth proportional to 10,290.04, 14,187.29 and 8,399.70 is: 11,581.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.04 : 14,187.29 = 8,399.70 : x
  2. Step 2: Convert to fraction form
    10,290.04/14,187.29 = 8,399.70/x
  3. Step 3: Cross multiply
    10,290.04x = 14,187.29 × 8,399.70
  4. Step 4: Simplify right side
    10,290.04x = 119,168,937.81
  5. Step 5: Solve for x
    x = 119,168,937.81/10,290.04
  6. Step 6: Final answer
    x = 11,581.00

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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.