Home / 19,587.96-27,013.46-12,870.92

Finding the Fourth Proportional to 19,587.96, 27,013.46 and 12,870.92

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Solution

The fourth proportional to 19,587.96, 27,013.46 and 12,870.92 is: 17,750.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.96 : 27,013.46 = 12,870.92 : x
  2. Step 2: Convert to fraction form
    19,587.96/27,013.46 = 12,870.92/x
  3. Step 3: Cross multiply
    19,587.96x = 27,013.46 × 12,870.92
  4. Step 4: Simplify right side
    19,587.96x = 347,688,082.58
  5. Step 5: Solve for x
    x = 347,688,082.58/19,587.96
  6. Step 6: Final answer
    x = 17,750.09

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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.