Home / 19,290.47-26,619.90-12,124.10

Finding the Fourth Proportional to 19,290.47, 26,619.90 and 12,124.10

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Solution

The fourth proportional to 19,290.47, 26,619.90 and 12,124.10 is: 16,730.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.47 : 26,619.90 = 12,124.10 : x
  2. Step 2: Convert to fraction form
    19,290.47/26,619.90 = 12,124.10/x
  3. Step 3: Cross multiply
    19,290.47x = 26,619.90 × 12,124.10
  4. Step 4: Simplify right side
    19,290.47x = 322,742,196.49
  5. Step 5: Solve for x
    x = 322,742,196.49/19,290.47
  6. Step 6: Final answer
    x = 16,730.66

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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.