Home / 19,869.06-27,420.02-10,916.88

Finding the Fourth Proportional to 19,869.06, 27,420.02 and 10,916.88

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Solution

The fourth proportional to 19,869.06, 27,420.02 and 10,916.88 is: 15,065.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.06 : 27,420.02 = 10,916.88 : x
  2. Step 2: Convert to fraction form
    19,869.06/27,420.02 = 10,916.88/x
  3. Step 3: Cross multiply
    19,869.06x = 27,420.02 × 10,916.88
  4. Step 4: Simplify right side
    19,869.06x = 299,341,013.35
  5. Step 5: Solve for x
    x = 299,341,013.35/19,869.06
  6. Step 6: Final answer
    x = 15,065.69

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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.