Home / 19,199.10-26,490.12-10,815.60

Finding the Fourth Proportional to 19,199.10, 26,490.12 and 10,815.60

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Solution

The fourth proportional to 19,199.10, 26,490.12 and 10,815.60 is: 14,922.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,199.10 : 26,490.12 = 10,815.60 : x
  2. Step 2: Convert to fraction form
    19,199.10/26,490.12 = 10,815.60/x
  3. Step 3: Cross multiply
    19,199.10x = 26,490.12 × 10,815.60
  4. Step 4: Simplify right side
    19,199.10x = 286,506,541.87
  5. Step 5: Solve for x
    x = 286,506,541.87/19,199.10
  6. Step 6: Final answer
    x = 14,922.92

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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.