Home / 13,271.02-18,312.81-7,302.94

Finding the Fourth Proportional to 13,271.02, 18,312.81 and 7,302.94

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Solution

The fourth proportional to 13,271.02, 18,312.81 and 7,302.94 is: 10,077.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.02 : 18,312.81 = 7,302.94 : x
  2. Step 2: Convert to fraction form
    13,271.02/18,312.81 = 7,302.94/x
  3. Step 3: Cross multiply
    13,271.02x = 18,312.81 × 7,302.94
  4. Step 4: Simplify right side
    13,271.02x = 133,737,352.66
  5. Step 5: Solve for x
    x = 133,737,352.66/13,271.02
  6. Step 6: Final answer
    x = 10,077.40

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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.