Home / 19,484.40-26,888.76-11,100.72

Finding the Fourth Proportional to 19,484.40, 26,888.76 and 11,100.72

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Solution

The fourth proportional to 19,484.40, 26,888.76 and 11,100.72 is: 15,319.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,484.40 : 26,888.76 = 11,100.72 : x
  2. Step 2: Convert to fraction form
    19,484.40/26,888.76 = 11,100.72/x
  3. Step 3: Cross multiply
    19,484.40x = 26,888.76 × 11,100.72
  4. Step 4: Simplify right side
    19,484.40x = 298,484,595.91
  5. Step 5: Solve for x
    x = 298,484,595.91/19,484.40
  6. Step 6: Final answer
    x = 15,319.16

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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.