Home / 19,312.56-28,895.94-12,746.70

Finding the Fourth Proportional to 19,312.56, 28,895.94 and 12,746.70

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Solution

The fourth proportional to 19,312.56, 28,895.94 and 12,746.70 is: 19,071.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312.56 : 28,895.94 = 12,746.70 : x
  2. Step 2: Convert to fraction form
    19,312.56/28,895.94 = 12,746.70/x
  3. Step 3: Cross multiply
    19,312.56x = 28,895.94 × 12,746.70
  4. Step 4: Simplify right side
    19,312.56x = 368,327,878.40
  5. Step 5: Solve for x
    x = 368,327,878.40/19,312.56
  6. Step 6: Final answer
    x = 19,071.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.