Home / 14,870.19-20,521.47-8,156.07

Finding the Fourth Proportional to 14,870.19, 20,521.47 and 8,156.07

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Solution

The fourth proportional to 14,870.19, 20,521.47 and 8,156.07 is: 11,255.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,870.19 : 20,521.47 = 8,156.07 : x
  2. Step 2: Convert to fraction form
    14,870.19/20,521.47 = 8,156.07/x
  3. Step 3: Cross multiply
    14,870.19x = 20,521.47 × 8,156.07
  4. Step 4: Simplify right side
    14,870.19x = 167,374,545.82
  5. Step 5: Solve for x
    x = 167,374,545.82/14,870.19
  6. Step 6: Final answer
    x = 11,255.71

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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.