Home / 19,159.95-26,439.87-10,661.40

Finding the Fourth Proportional to 19,159.95, 26,439.87 and 10,661.40

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Solution

The fourth proportional to 19,159.95, 26,439.87 and 10,661.40 is: 14,712.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,159.95 : 26,439.87 = 10,661.40 : x
  2. Step 2: Convert to fraction form
    19,159.95/26,439.87 = 10,661.40/x
  3. Step 3: Cross multiply
    19,159.95x = 26,439.87 × 10,661.40
  4. Step 4: Simplify right side
    19,159.95x = 281,886,030.02
  5. Step 5: Solve for x
    x = 281,886,030.02/19,159.95
  6. Step 6: Final answer
    x = 14,712.25

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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.