Home / 19,312.48-26,651.60-12,602.40

Finding the Fourth Proportional to 19,312.48, 26,651.60 and 12,602.40

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Solution

The fourth proportional to 19,312.48, 26,651.60 and 12,602.40 is: 17,391.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312.48 : 26,651.60 = 12,602.40 : x
  2. Step 2: Convert to fraction form
    19,312.48/26,651.60 = 12,602.40/x
  3. Step 3: Cross multiply
    19,312.48x = 26,651.60 × 12,602.40
  4. Step 4: Simplify right side
    19,312.48x = 335,874,123.84
  5. Step 5: Solve for x
    x = 335,874,123.84/19,312.48
  6. Step 6: Final answer
    x = 17,391.56

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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.