Home / 12,897.48-19,347.95-5,104.47

Finding the Fourth Proportional to 12,897.48, 19,347.95 and 5,104.47

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Solution

The fourth proportional to 12,897.48, 19,347.95 and 5,104.47 is: 7,657.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.48 : 19,347.95 = 5,104.47 : x
  2. Step 2: Convert to fraction form
    12,897.48/19,347.95 = 5,104.47/x
  3. Step 3: Cross multiply
    12,897.48x = 19,347.95 × 5,104.47
  4. Step 4: Simplify right side
    12,897.48x = 98,761,030.34
  5. Step 5: Solve for x
    x = 98,761,030.34/12,897.48
  6. Step 6: Final answer
    x = 7,657.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.