Home / 19,869.81-29,809.77-9,337.78

Finding the Fourth Proportional to 19,869.81, 29,809.77 and 9,337.78

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Solution

The fourth proportional to 19,869.81, 29,809.77 and 9,337.78 is: 14,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.81 : 29,809.77 = 9,337.78 : x
  2. Step 2: Convert to fraction form
    19,869.81/29,809.77 = 9,337.78/x
  3. Step 3: Cross multiply
    19,869.81x = 29,809.77 × 9,337.78
  4. Step 4: Simplify right side
    19,869.81x = 278,357,074.11
  5. Step 5: Solve for x
    x = 278,357,074.11/19,869.81
  6. Step 6: Final answer
    x = 14,009.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.