Home / 18,870.30-26,041.32-10,803.92

Finding the Fourth Proportional to 18,870.30, 26,041.32 and 10,803.92

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Solution

The fourth proportional to 18,870.30, 26,041.32 and 10,803.92 is: 14,909.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.30 : 26,041.32 = 10,803.92 : x
  2. Step 2: Convert to fraction form
    18,870.30/26,041.32 = 10,803.92/x
  3. Step 3: Cross multiply
    18,870.30x = 26,041.32 × 10,803.92
  4. Step 4: Simplify right side
    18,870.30x = 281,348,337.97
  5. Step 5: Solve for x
    x = 281,348,337.97/18,870.30
  6. Step 6: Final answer
    x = 14,909.58

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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.