Home / 19,510.70-26,937.95-12,807.72

Finding the Fourth Proportional to 19,510.70, 26,937.95 and 12,807.72

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Solution

The fourth proportional to 19,510.70, 26,937.95 and 12,807.72 is: 17,683.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,510.70 : 26,937.95 = 12,807.72 : x
  2. Step 2: Convert to fraction form
    19,510.70/26,937.95 = 12,807.72/x
  3. Step 3: Cross multiply
    19,510.70x = 26,937.95 × 12,807.72
  4. Step 4: Simplify right side
    19,510.70x = 345,013,656.94
  5. Step 5: Solve for x
    x = 345,013,656.94/19,510.70
  6. Step 6: Final answer
    x = 17,683.31

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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.