Home / 13,271.53-18,314.93-7,303.81

Finding the Fourth Proportional to 13,271.53, 18,314.93 and 7,303.81

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Solution

The fourth proportional to 13,271.53, 18,314.93 and 7,303.81 is: 10,079.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.53 : 18,314.93 = 7,303.81 : x
  2. Step 2: Convert to fraction form
    13,271.53/18,314.93 = 7,303.81/x
  3. Step 3: Cross multiply
    13,271.53x = 18,314.93 × 7,303.81
  4. Step 4: Simplify right side
    13,271.53x = 133,768,768.88
  5. Step 5: Solve for x
    x = 133,768,768.88/13,271.53
  6. Step 6: Final answer
    x = 10,079.38

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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.