Home / 18,870.32-26,045.16-11,801.36

Finding the Fourth Proportional to 18,870.32, 26,045.16 and 11,801.36

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Solution

The fourth proportional to 18,870.32, 26,045.16 and 11,801.36 is: 16,288.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.32 : 26,045.16 = 11,801.36 : x
  2. Step 2: Convert to fraction form
    18,870.32/26,045.16 = 11,801.36/x
  3. Step 3: Cross multiply
    18,870.32x = 26,045.16 × 11,801.36
  4. Step 4: Simplify right side
    18,870.32x = 307,368,309.42
  5. Step 5: Solve for x
    x = 307,368,309.42/18,870.32
  6. Step 6: Final answer
    x = 16,288.45

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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.