Home / 13,957.56-19,260.72-7,988.76

Finding the Fourth Proportional to 13,957.56, 19,260.72 and 7,988.76

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Solution

The fourth proportional to 13,957.56, 19,260.72 and 7,988.76 is: 11,024.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,957.56 : 19,260.72 = 7,988.76 : x
  2. Step 2: Convert to fraction form
    13,957.56/19,260.72 = 7,988.76/x
  3. Step 3: Cross multiply
    13,957.56x = 19,260.72 × 7,988.76
  4. Step 4: Simplify right side
    13,957.56x = 153,869,269.51
  5. Step 5: Solve for x
    x = 153,869,269.51/13,957.56
  6. Step 6: Final answer
    x = 11,024.08

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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.