Home / 19,368.48-26,728.12-10,870.80

Finding the Fourth Proportional to 19,368.48, 26,728.12 and 10,870.80

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Solution

The fourth proportional to 19,368.48, 26,728.12 and 10,870.80 is: 15,001.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,368.48 : 26,728.12 = 10,870.80 : x
  2. Step 2: Convert to fraction form
    19,368.48/26,728.12 = 10,870.80/x
  3. Step 3: Cross multiply
    19,368.48x = 26,728.12 × 10,870.80
  4. Step 4: Simplify right side
    19,368.48x = 290,556,046.90
  5. Step 5: Solve for x
    x = 290,556,046.90/19,368.48
  6. Step 6: Final answer
    x = 15,001.49

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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.