Home / 13,071.18-18,038.25-7,102.93

Finding the Fourth Proportional to 13,071.18, 18,038.25 and 7,102.93

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Solution

The fourth proportional to 13,071.18, 18,038.25 and 7,102.93 is: 9,802.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,071.18 : 18,038.25 = 7,102.93 : x
  2. Step 2: Convert to fraction form
    13,071.18/18,038.25 = 7,102.93/x
  3. Step 3: Cross multiply
    13,071.18x = 18,038.25 × 7,102.93
  4. Step 4: Simplify right side
    13,071.18x = 128,124,336.88
  5. Step 5: Solve for x
    x = 128,124,336.88/13,071.18
  6. Step 6: Final answer
    x = 9,802.05

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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.